Institution
- Academy of Natural Sciences of Philadelphia1
- Acadia University1
- Aceto Pharma Corporation1
- Advanced Information Systems, Inc1
- Advanced Manufacturing Program 2.0 (AMP2.0). Appointed by President Barack Obama1
- Advanced Software Technology & Mechatronics Research Institute of Kyoto1
- Aerojet-General Corporation1
- Aerospace Corporation1
- Affymax Research Institute1
- Affymetrix, Inc.1
- Air Force Cambridge Research Laboratories (U.S.)1
- Air Force Rocket Propulsion Laboratory (U.S.)1
- Air and Water Technologies, Inc.1
- Airco, Inc.1
- Alaska Interstate Co.1
- Alaska. Office of the Governor. Appointed by Governor Walter J. Hickel1
- Alberta Helium Limited 1
- Alberta. Oil and Gas Conservation Board1
- Aldrich Chemical Company1
- Aleph Null Fund1